Which attribute represents the rotation angle that ensure the object face as expected before loading

[DevinQiao]

Which attribute represents the rotation angle that ensure the object face as expected before loading

[YueYANG1996]

JSON["objects"][.]["rotation"] is the rotation information. In AI2-THOR (Unity). The floor is the xz plane, and y is the height. y = 0 faces up, y=90 faces right, and so on (clockwise). I guess the comprehension of rotation in Sapien is different from Unity.

[DevinQiao]

Thank you for your kind response. I still have a question: did you make adjustments before loading the objects so that the fronts of all objects face in one direction? Because in actual layout design, it should be assumed that the fronts of all objects are facing in one direction, right? That is, in the "objaverse_holodeck_database.json" file, are there any attributes to make the objects face in one direction?

[YueYANG1996]

All objects have been rotated based on the canonical view annotated by GPT-4V, which means the objects' front side will face up if you set the y=0.

[DevinQiao]

Dear author, I apologize for bothering you again with my question. In your paper, you mentioned that you used GPT4-V to label the Front view of the assets, but I was unable to find the related annotations in the dataset file I downloaded. I looked in the file named data/objaverse_holodeck/09_23_combine_scale/objaverse_holodeck_database.json, but there doesn't seem to be any attribute related to the Front view. The only thing I could guess that might be related is the pose_z_rot_angle, but its values are not always 3.14 or multiples of 90 degrees. Could you please tell me where exactly in the dataset this attribute can be found?

[sunfanyunn]

The assets are rotated first before saving them as this data file: https://drive.google.com/file/d/1MQbFbNfTz94x8Pxfkgbohz4l46O5e3G1/view?usp=sharing